AU620399B2 - High efficiency cube-corner retroreflective material - Google Patents

High efficiency cube-corner retroreflective material Download PDF

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Publication number
AU620399B2
AU620399B2 AU34879/89A AU3487989A AU620399B2 AU 620399 B2 AU620399 B2 AU 620399B2 AU 34879/89 A AU34879/89 A AU 34879/89A AU 3487989 A AU3487989 A AU 3487989A AU 620399 B2 AU620399 B2 AU 620399B2
Authority
AU
Australia
Prior art keywords
elements
grooves
cube
angle
retroreflective
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU34879/89A
Other languages
English (en)
Other versions
AU3487989A (en
Inventor
Roger Henry Appeldorn
Mark Edward Gardiner
Timothy Lee Hoopman
John Carl Nelson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of AU3487989A publication Critical patent/AU3487989A/en
Application granted granted Critical
Publication of AU620399B2 publication Critical patent/AU620399B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/12—Optical coatings produced by application to, or surface treatment of, optical elements by surface treatment, e.g. by irradiation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/122—Reflex reflectors cube corner, trihedral or triple reflector type
    • G02B5/124—Reflex reflectors cube corner, trihedral or triple reflector type plural reflecting elements forming part of a unitary plate or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S359/00—Optical: systems and elements
    • Y10S359/90—Methods

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Road Signs Or Road Markings (AREA)
AU34879/89A 1988-05-20 1989-05-17 High efficiency cube-corner retroreflective material Ceased AU620399B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/197,107 US4938563A (en) 1986-11-21 1988-05-20 High efficiency cube corner retroflective material
US197107 1988-05-20

Publications (2)

Publication Number Publication Date
AU3487989A AU3487989A (en) 1989-11-23
AU620399B2 true AU620399B2 (en) 1992-02-20

Family

ID=22728080

Family Applications (1)

Application Number Title Priority Date Filing Date
AU34879/89A Ceased AU620399B2 (en) 1988-05-20 1989-05-17 High efficiency cube-corner retroreflective material

Country Status (11)

Country Link
US (1) US4938563A (de)
EP (1) EP0342958B1 (de)
JP (1) JP2986161B2 (de)
KR (1) KR0151136B1 (de)
CN (1) CN1022588C (de)
AT (1) ATE115297T1 (de)
AU (1) AU620399B2 (de)
BR (1) BR8902358A (de)
CA (1) CA1319551C (de)
DE (1) DE68919749T2 (de)
ZA (1) ZA893703B (de)

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US5919551A (en) * 1996-04-12 1999-07-06 3M Innovative Properties Company Variable pitch structured optical film
US5814355A (en) * 1996-04-30 1998-09-29 Minnesota Mining And Manufacturing Company Mold for producing glittering cube-corner retroreflective sheeting
US5840405A (en) * 1996-04-30 1998-11-24 Minnesota Mining And Manufacturing Company Glittering cube-corner retroreflective sheeting
US5763049A (en) * 1996-04-30 1998-06-09 Minnesota Mining And Manufacturing Company Formed ultra-flexible retroreflective cube-corner composite sheeting with target optical properties and method for making same
US5948488A (en) * 1996-04-30 1999-09-07 3M Innovative Properties Company Glittering cube-corner article
US5770124A (en) * 1996-04-30 1998-06-23 Minnesota Mining And Manufacturing Company Method of making glittering cube-corner retroreflective sheeting
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JP3974959B2 (ja) * 1996-09-30 2007-09-12 スリーエム カンパニー 再帰反射性情報表示シートの製造方法
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US6461003B1 (en) 1997-06-12 2002-10-08 Purdue Research Foundation Corner cube arrays and manufacture thereof
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US8728610B2 (en) 2000-02-25 2014-05-20 3M Innovative Properties Company Compound mold and structured surface articles containing geometric structures with compound faces and method of making same
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KR890017553A (ko) 1989-12-16
BR8902358A (pt) 1990-01-09
ZA893703B (en) 1991-01-30
CA1319551C (en) 1993-06-29
JPH0222602A (ja) 1990-01-25
EP0342958B1 (de) 1994-12-07
AU3487989A (en) 1989-11-23
US4938563A (en) 1990-07-03
EP0342958A2 (de) 1989-11-23
CN1022588C (zh) 1993-10-27
EP0342958A3 (en) 1990-02-21
JP2986161B2 (ja) 1999-12-06
KR0151136B1 (ko) 1998-12-15
DE68919749D1 (de) 1995-01-19
CN1038885A (zh) 1990-01-17
DE68919749T2 (de) 1995-06-14
ATE115297T1 (de) 1994-12-15

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